Home / 28,888.82-39,862.56-16,140.39

Finding the Fourth Proportional to 28,888.82, 39,862.56 and 16,140.39

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Solution

The fourth proportional to 28,888.82, 39,862.56 and 16,140.39 is: 22,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.82 : 39,862.56 = 16,140.39 : x
  2. Step 2: Convert to fraction form
    28,888.82/39,862.56 = 16,140.39/x
  3. Step 3: Cross multiply
    28,888.82x = 39,862.56 × 16,140.39
  4. Step 4: Simplify right side
    28,888.82x = 643,397,474.81
  5. Step 5: Solve for x
    x = 643,397,474.81/28,888.82
  6. Step 6: Final answer
    x = 22,271.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.